Model 77

Pressure Booster to 10,000 psi

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  •  Supply pressure to high pressure controllers
  • Pressure source to 10,000 psi
  • System supply pressure

Key Features

  • Boosts bottle nitrogen pressure to 10,000 psi
  • 300 - 3000 psi input pressure
  • Operator control panel
  • Input and output gauges
  • Built in 40 micron filter on drive supply port
  • Built in 20 micron filter on supply port



The Model 77 Pressure Booster System is a single piston air driven gas compressor designed for boosting bottle nitrogen up to 10,000 psig. The unit is mounted in a roll-bar frame and includes an operator control panel, with gauges for supply pressure and output reference pressure, and an output vent valve. Safety features include internal stainless steel tubing rated to four times expected pressure, an auto shut-off valve and an output relief valve.

Input and output

The Model 77 requires a drive pressure input from shop air and supply pressure input from bottled nitrogen or another inert gas. The output pressure is adjusted by a knob on the drive pressure regulator.

A nitrogen pressure regulator is not required as the unit will function with any supply gas pressure from 300 to 3000 psig. The auto shut-off valve shuts down the system if bottle pressure is less than 300 psig.

Response time

The time for the output of the Model 77 to reach the desired pressure will vary with the volume to be filled and/or the available pressure at the nitrogen bottle connected to the supply input. Typical response with 2500 psig input is approximately 77 cycles per 40in3 of volume on output at 1 minute, 15 seconds per cycle.

Pressure Booster to 10,000 psi
  • Pressure Booster to 10,000 psi